Foldable Support Frame

Abstract

A foldable support frame includes four support columns, two internal support components and two load-bearing components. Each load-bearing component includes a [ shape top rod and an I shape side support rod. Two ends of the top rod are movably connected to the support columns, the two load-bearing components are movably connected via a first hinge. The four support columns respectively are first support column, second support column, third support column and fourth support column. The first support column and the second support column are movably connected through one internal support component, the third support column and the fourth support column are movably connected through another internal support component. The first support column and the third support column are connected through one side support rod, the second support column and the fourth support column are connected through another side support rod.

1 . A foldable support frame comprises four support columns, two internal support components and two load-bearing components, wherein one load-bearing component comprises a [ shape top rod and an I shape side support rod; two ends of a top rod are movably connected to the support columns, and the two load-bearing components are movably connected via a first hinge; the four support columns are respectively first support column, second support column, third support column and fourth support column; the first support column and the second support column are movably connected through one internal support component, the third support column and the fourth support column are movably connected through another internal support component; the first support column and the third support column are connected through one side support rod, the second support column and the fourth support column are connected through another side support rod. 
     
     
         2 . A foldable support frame according to  claim 1 , wherein two ends of the two [ shape top rods are respectively hinged to the four support columns, and two [ shape top rods are hinged by the first hinge on middle. 
     
     
         3 . A foldable support frame according to  claim 2 , wherein a first groove is arranged on a top side of a support column, a first placement hole is arranged on a side wall of the first groove; a first block adapted to the first groove is arranged at an end of the top rod, and the first block is embedded in the first groove and is rotatably connected through a first rotary shaft. 
     
     
         4 . A foldable support frame according to  claim 1 , wherein two groups of internal support components are provided, and the two groups of the internal support components respectively comprise two internal support rods and two connection rods; one end of a connection rod is rotatably connected to a bottom side of a support column, and other end of a connection rod is connected to an internal support rod; and the two internal support rods of the two groups of the internal support components are connected by a second hinge. 
     
     
         5 . A foldable support frame according to  claim 4 , wherein a second groove is arranged on the bottom side of the support column, a second placement hole is respectively arranged on upper and lower sides of the second groove; a second block adapted to the second groove is arranged at one end of the connection rod away from the internal support rod, and the second block is embedded in the second groove and is rotatably connected through a second rotary shaft. 
     
     
         6 . A foldable support frame according to  claim 1 , wherein the support frame comprises four diagonal support ribs, and two ends of a diagonal support rib are respectively connected to one side support rod and one support column. 
     
     
         7 . A foldable support frame according to  claim 1 , wherein the support frame comprises four first rib reinforcements, and the first rib reinforcement is configured as triangular shape; and two edges of each first rib reinforcement are respectively connected to one support column and one side support rod. 
     
     
         8 . A foldable support frame according to  claim 1 , wherein the support frame further comprises four second rib reinforcements, and two edges of each second rib reinforcement are respectively connected to one connection rod and one internal support rod. 
     
     
         9 . A foldable support frame according to  claim 1 , wherein the connection rod is a square tube with a cross-section of 20 mm*20 mm, a thickness of 2 mm, and a length of 375 mm; and the internal support rod is a square tube with a cross-section of 20 mm*20 mm, a thickness of 2 mm, and a length of 375 mm. 
     
     
         10 . A foldable support frame according to  claim 9 , wherein a circular ring with a length of 25 mm, an outer diameter of 21.3 mm and an inner diameter of 8 mm is welded on a top side of each internal support rod.